To activate/deactivate the Hill start assist system (STI)

While the Hill start assist system is deactivated, when starting on an uphill grade, braking power is not maintained if the brake pedal is released. Start on an uphill grade by using the parking brake.
You can activate/deactivate the Hill start assist system according to the following procedure.
See also:
Ride & Handling
My first drive of the 2012 Impreza was on dry, warm pavement, where both the
16- and 17-inch alloy wheels lent a comfortable ride. (I didn't drive the base
15-inch steel wheels.) You're always awa ...
Display selection
Press the “TEXT” button while receiving the satellite radio to change the display
as follows:
...
Styling
The Impreza is athletically styled, avoiding the bulbous look that plagues
some hatchbacks, including the Pontiac Vibe. One of the 2.5GT's most noticeable
styling features is its hood scoop, which ...
